These used to be factory available for Pontiac, but found to be the ultimate RARE option. Only one has been officially documented and found.
05-23-06, 08:03 PM
Man, those mufflers look bad-ass! I'd love dual exhaust with those!
05-23-06, 08:41 PM
If I'm understanding this correctly that's the same thing the XLR-V has, a bypass opens to make it straight through at full throttle. Once again something pioneered by Pontiac decades ago is being used by a modern car. And yes, those would be awesome to have on a Caddy, who needs Flowmaster.
05-23-06, 09:49 PM
I saw a guy on cardomain with a '69 Coupe with something like that on it, very kickass.
Just hook them up to manifold vacuum, so everytime you punch it and vacuum drops, they just open!!!
Imagine that ricer you are blowing away hearing that V8 open up once you hit WOT!